Mathematics, 10.04.2020 17:48, unicorns110504
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters? We want 95% confidence that the sample mean is within 5 minutes of the population mean, and the population standard deviation is known to be 7 minutes.
Answers: 3
Mathematics, 21.06.2019 16:50, Kianna000
Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.
Answers: 3
How many commuters must be randomly selected to estimate the mean driving time of Chicago commuters?...
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